It seems that the following passages state that there are some human beings that are perfect. It also seems that some that were called righteous were also perfect.
I said seems. I am looking to hear ideas and explanations whether that is correct.
These [are] the generations of Noah: Noah was a just man [and] perfect in his generations, [and] Noah walked with God. (Gen 6. 9)
All these men of war, that could keep rank, came with a perfect heart to Hebron, to make David king over all Israel: and all the rest also of Israel [were] of one heart to make David king. (I Ch. 12.28)
There was a man in the land of Uz, whose name [was] Job; and that man was perfect and upright, and one that feared God, and eschewed evil. (Job 1. 1)
[It is] God that girdeth me with strength, and maketh my way perfect. (Ps. 18.32)
And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless. (lk. 1: 6) [The is Zacharia and Elizabeth]
By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his gifts: and by it he being dead yet speaketh. (Heb. 11: 4)